參數(shù)資料
型號： MC9S12DG128BCFU
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： MC9S12DT128B
中文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封裝： 14 X 14 MM, 2.20 MM HEIGHT, 0.65 MM PITCH, QFP-80
文件頁數(shù)： 94/124頁
文件大?。?/td> 577K
代理商： MC9S12DG128BCFU
MC9S12DT128B Device User Guide — V01.07
94
specifies results in an error of less than 1/2 LSB (2.5mV) at the maximum leakage current. If device or
operatingconditionsarelessthanworstcaseorleakage-inducederrorisacceptable,largervaluesofsource
resistance is allowed.
A.2.2.2 Source capacitance
When sampling an additional internal capacitor is switched to the input. This can cause a voltage drop due
to charge sharing with the external and the pin capacitance. For a maximum sampling error of the input
voltage
≤
1LSB, then the external filter capacitor, C
f
≥
1024 * (C
INS
– C
INN
).
A.2.2.3 Current injection
There are two cases to consider.
1.
A current is injected into the channel being converted. The channel being stressed has conversion
valuesof$3FF($FFin8-bitmode)foranaloginputsgreaterthanV
RH
and$000forvalueslessthan
V
RL
unless the current is higher than specified as disruptive conditions.
Current is injected into pins in the neighborhood of the channel being converted. A portion of this
current is picked up by the channel (coupling ratio K), This additional current impacts the accuracy
of the conversion depending on the source resistance.
The additional input voltage error on the converted channel can be calculated as V
ERR
= K * R
S
*
I
INJ
, with I
INJ
being the sum of the currents injected into the two pins adjacent to the converted
channe
Table A-9 ATD Electrical Characteristics
2.
Conditions are shown in
Table A-4
unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
C Max input Source Resistance
R
S
-
-
1
K
2
T
Total Input Capacitance
Non Sampling
Sampling
C
INN
C
INS
10
22
pF
3
C Disruptive Analog Input Current
I
NA
-2.5
2.5
mA
4
C Coupling Ratio positive current injection
K
p
10
-4
A/A
5
C Coupling Ratio negative current injection
K
n
10
-2
A/A
相關(guān)PDF資料
PDF描述
MC9S12DG128BCPV MC9S12DT128B
MC9S12DG128BMFU MC9S12DT128B
MC9S12DG128BMPV MC9S12DT128B
MC9S12DG128BVFU MC9S12DT128B
MC9S12DG128BVPV MC9S12DT128B
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC9S12DG128BCPV 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MC9S12DG128BMFU 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC9S12DG128BVFU 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
MC9S12DG128CFU 制造商:FREESCALE-SEMI 功能描述:
MC9S12DG128CFUE 功能描述:16位微控制器 - MCU 16 BIT 25 MHZ RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
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